Login to Oracle cloud (https://cloud.oracle.com/home) by providing Identity Domain, you will see following Dashboard console:
Click on create Instance and database:
Click on Custom:
Provide instance name, DB Software version and other details…
Provide DB Name and other details as below, Most important upload ssh public key which can be generated using puttygen Generate Public and Private Keys using PuTTYgen, save respective private key which can be used to connect server once after the configuration.
Please provide username and password when you are planning to use cloud storage container for backups.
Double check the provided configuration before click on create database
Database creation and configuration takes a while to complete the process and there you go..
Thank you !!